Improvement in stem-winding and setting attachments to watches



P. R. THEURER.

Watch Stem Winder and Setter. Ne. 107,736. Patented Sept. 27, 1870.

FRITZ ROBERT THEURER, OF OHAUX DE FOND, SWITZERLAND.

Letters Patent No. 107,736, dated September 27, 1870.

IMPROVEMENT IN STEM-WINDING AND SETTING ATTACHMENTS TO WATCHES. o-4.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

ment of means, as will be hereinafter described, haring for its object, mainly, to provide an arrangement which may be applied to watches .already made, as well as to those being made.

Figure 1 is a plan of one of the plates, and part of .tlie runninggear of a watch, with my improved-attachment applied to it;

Figure 2 is aplanof fig. l reversed Figure 3 is a section of fig. 1, on the line :v x; and

Figure 4 is an edge view' andplan of the vibrating and shifting-bar, and used for supporting and shifting the gear-wheel, used f'ortnrning either the chain-drum or the center-post.

Similar letters otlnm'd'ercnce indicate corresponding parts.

A is the ratchet-wheel, placed on the post B of the chaindrum or barrel, so as to be capable of turning it; and

C is-a larger wheel or disk, mounted above wheel A, and supported by the short tubular stud 1) of a bar, E, which is pivoted at F to the plate G, which bridges over the large train -whcel H, and supports the upper. end of the stud B. I

This bar has a large hole through it, coinciding with the hole of the stud 1), both of which are near the end opposite-the onev by which it is pivoted at F, through which hole the post B rises, and the said bar is provided with an arm, I, projecting from one side to the outer edge of the movement-supporting plates. or it may project through the case.

At or near the outer end of this arm is a stud, K, perpendicular toit, against which the free end of a spring, L, attached to the frame, bears, the said spring pressing the bar E toward the edge of thccase, and away'from the center-post M.

The wheel 0 has a flange, N, projecting from the lower face, and spur cog-teeth onthe periphery.

Thisflange is notched or toothed, as shown at a, so that if the wheel 0 be shifted to one side of the center-stud B, on which the ratchet-wheel A is mounted, the teeth of the latter will engage in the said notches a.

O is a small gear-wheel, placed on the center-stud M, to gear with wheel 0, when shifted into the proper position.

1 is a small wheel mounted on a stud-pin in 'the bar G, and arranged to communicate motion from the stem Q, and wheel R thereon, to the wheel 0.

The 'plate S is notched in the edge, to provide space for the wheel R, and a curved plate, T, or support for the stem, is attached to the edge behind the wheel, as shown.

In practice, the case of the watch may serve for this support, or the said support may be used, as preferred.

The inner end of the stem may be supported inside' of the wheel R, in any suitable way.

It will be seen that the wheel 0 will always be turned by the turning of the stem, and when the wheel 0 is subject to the action of the spring L, -it will be forced out-ward, so that the notched flange N will engage the teeth of the ratchet-wheel A, which will be turned by it,and will turn the chain-drum to wind it but itthc bar E be pressed inward by the thumb placed on the end of arm I or stud K, the wheel A will not be engaged, and, if pressed in far enough, the wheel 0 will engage with wheel 0, and then the hands will be turned for setting.

It will further be seen that all these parts may be readilyattached to a watch already made,withont-rcquiring any material or diflicult changes to be made.

Having thus described my invention,

I claim as new and desire to secure by Letters Patent- The combination, with the post B, of the chaindrnm, the gear-wheel on the center-post, and the revolving stem of thewhecls A, U, and P, the bar E, and spring L, when arranged for operation, substantially in the manner described.

The above specification of my invention signed by me this 16th dayof June, 1870. I

FRITZ ROBERT THEUREI.

Witnesses:

Grmnnns ECKMANN, J osns Scnnmaecnn. 

